Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dai hau cong snippets" » "dai khau cong snippets", "dai cau cong snippets", "dai hau bong snippets", "dai han cong snippets", "dai hai cong snippets", "dai huu cong snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dai hau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dai hau cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dai hau cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dai hau cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.